package com.zzt.lotterysystem.service.impl;

import com.zzt.lotterysystem.common.errorcode.ServiceErrorCodeConstants;
import com.zzt.lotterysystem.common.exception.ServiceException;
import com.zzt.lotterysystem.common.utils.*;
import com.zzt.lotterysystem.service.VerificationCodeService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.HashMap;
import java.util.Map;

/**
 * Created with IntelliJ IDEA.
 * Description
 * User: panda
 * Date: 2025-05-19
 * Time: 19:53
 */
@Service
public class VerificationCodeServiceImpl implements VerificationCodeService {

    // 对于 redis 里面的 key 需要标准化，为了区分业务，应该给 key 定义前缀
    // VerificationCode_13111111111 User_13111111111

    private static final String VERIFICATION_CODE_PREFIX = "VerificationCode_";

    private static final Long VERIFICATION_CODE_TIMEOUT = 60L;

    private static final String VERIFICATION_CODE_TEMPLATE_CODE = "SMS_154950909";

    @Autowired
    private SMSUtil smsUtil;

    @Autowired
    private RedisUtil redisUtil;

    @Override
    public void sendVerificationCode(String phoneNumber) {
        // 校验手机号
        if(!RegexUtil.checkMobile(phoneNumber)){
            throw new ServiceException(ServiceErrorCodeConstants.PHONE_NUMBER_ERROR);
        }

        // 生成随机验证码
        String code = CaptchaUtil.getCaptcha(4);

        // 发送验证码
        // {"code":"xxxx"}
        Map<String, String> map = new HashMap<>();
        map.put("code", code);
        smsUtil.sendMessage(VERIFICATION_CODE_TEMPLATE_CODE,
                phoneNumber,
                JacksonUtil.writeValueAsString(map));

        // 缓存验证码
        // 131xxxxxxxxx: code
        redisUtil.set(VERIFICATION_CODE_PREFIX + phoneNumber, code, VERIFICATION_CODE_TIMEOUT);
    }

    @Override
    public String getVerificationCode(String phoneNumber) {
        // 校验手机号
        if(!RegexUtil.checkMobile(phoneNumber)){
            throw new ServiceException(ServiceErrorCodeConstants.PHONE_NUMBER_ERROR);
        }

        return redisUtil.get(VERIFICATION_CODE_PREFIX + phoneNumber);
    }
}
